What does sub6 mean?

mmWave refers to higher frequency radio bands ranging from 24GHz to 40GHz, and Sub-6GHz refers to mid and low-frequency bands under 6GHz . Low-frequency bands are under 1GHz, while mid-bands range from 3.4GHz to 6GHz and are not considered “mmWave.” mmWave 5G networks are ultra-fast, but they’re also ultra-short range.10 May 2021

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Does iPhone 13 have mmWave?

5G Improvements, no international mmWave The iPhone 13 adds support for several more 5G bands: n29 (700d MHz), n30 (2300 MHz), n48 (TD 3600) and n258 (25 GHz). mmWave 5G support remains a U.S.-only feature, according to Apple, which lists no support for mmWave on phones sold outside the U.S.

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